Archaeologists have announced that a sinkhole opened up in front of the Pantheon has brought to light the ancient flooring in Piazza Della Rotonda.

The discovery of the seven travertine slabs, located about 2.5 meters below the existing level of the piazza, is, in fact, a rediscovery.
The flooring was uncovered during works in the 1990s but was sealed up again after being documented by archaeologists who now re-examine the ancient remains.
In imperial times the Pantheon square was much larger and, the temple dedicated to all the Roman gods, built by Agrippa between 27 and 25 BC.

The area was completely transformed in the second century AD, under Emperor Hadrian, with the level of the piazza raised and repaved.